Six of Crows by Leigh Bardugo; 2015. Hardcover. (YA)

Ketterdam: a bustling hub of international trade where anything can be had for the right price--and no one knows that better than criminal prodigy Kaz Brekker. Kaz is offered a chance at a deadly heist that could make him rich beyond his wildest dreams. But he can't pull it off alone...A convict with a thirst for revenge.A sharpshooter who can't walk away from a wager.A runaway with a privileged past.A spy known as the Wraith.A Heartrender using her magic to survive the slums. A thief with a gift for unlikely escapes. Six dangerous outcasts. One impossible heist. Kaz's crew is the only thing that might stand between the world and destruction-if they don't kill each other first.